Portable gas detector



FIG. 1 is a front view of a portable gas detector of the present invention;

FIG. 2 is a back view of the portable gas detector of FIG. 1;

FIG. 3 is a left view of the portable gas detector of FIG. 1;

FIG. 4 is a right view of the portable gas detector of FIG. 1;

FIG. 5 is a top view of the portable gas detector of FIG. 1;

FIG. 6 is a bottom view of the portable gas detector of FIG. 1; and,

FIG. 7 is a perspective view of the portable gas detector of FIG. 1. 

CLAIM We claim the ornamental design for a portable gas detector, as shown and described. 